Patents by Inventor Chih-Yuan Liu

Chih-Yuan Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220384190
    Abstract: A method for forming a semiconductor device structure is provided. The method includes forming a first spacer over a substrate. The method includes partially removing the first spacer to form a gap dividing the first spacer into a first part and a second part. The method includes forming a filling layer covering a first top surface and a first sidewall of the first spacer. The filling layer and the first spacer together form a strip structure. The method includes forming a second spacer over a second sidewall of the strip structure. The method includes forming a third spacer over a third sidewall of the second spacer. The third spacer is narrower than the second spacer.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 1, 2022
    Inventors: Chih-Ming LAI, Shih-Ming CHANG, Wei-Liang LIN, Chin-Yuan TSENG, Ru-Gun LIU
  • Patent number: 11516571
    Abstract: A headphone includes two audio output devices and a headband connected between the two audio output devices. The headband includes a rubber block and at least one shape memory alloy wire. The shape memory alloy wire is at least partially embedded in the rubber block. The rubber block has at least one cutout.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: November 29, 2022
    Assignee: MERRY ELECTRONICS CO., LTD.
    Inventors: Chih-Yuan Huang, Yung-Tsung Hsu, I-Chang Liu
  • Publication number: 20220367201
    Abstract: A method of reducing corner rounding during patterning of a substrate to form a prescribed pattern comprising a corner includes dividing the pattern into a first pattern and a second pattern, the first pattern forming a first edge of the corner and the second pattern forming a second edge of the corner. At least a portion of the second pattern overlaps the first pattern such that the first edge intersects with the second edge to form a corner of the prescribed pattern. The method further includes forming the first pattern in a first mask layer disposed on a substrate to expose the substrate and forming the second pattern in the first mask layer to expose the substrate. The substrate exposed through the first mask layer is then etched to obtain the pattern.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 17, 2022
    Inventors: Chin-Yuan TSENG, Yu-Tien SHEN, Wei-Liang LIN, Chih-Ming LAI, Kuo-Cheng CHING, Shi-Ning JU, Li-Te LIN, Ru-Gun LIU
  • Publication number: 20220344191
    Abstract: A wafer pod transfer assembly is provided. The wafer pod transfer assembly includes a wafer pod port to receive a wafer pod, a transfer axle coupled to the wafer pod port, a shaft receiver, a shaft coupled to the transfer axle and to the shaft receiver, a pin through the shaft receiver and through the shaft, wherein the pin comprises a first end and a second end, opposite the first end, and a pin buckle including a first loop and a second loop. The pin buckle is coupled to the pin, the first loop encircles the first end of the pin, and the second loop encircles the second end of the pin.
    Type: Application
    Filed: July 22, 2021
    Publication date: October 27, 2022
    Inventors: Chih-Wei CHOU, Sheng-Yuan Lin, Yuan-Hsin Chi, Yin-Tun Chou, Hung-Chih Wang, Yu-Chi Liu
  • Publication number: 20220337932
    Abstract: A headphone includes two audio output devices and a headband connected between the two audio output devices. The headband includes a rubber block and at least one shape memory alloy wire. The shape memory alloy wire is at least partially embedded in the rubber block. The rubber block has at least one cutout.
    Type: Application
    Filed: August 19, 2021
    Publication date: October 20, 2022
    Inventors: Chih-Yuan HUANG, Yung-Tsung HSU, I-Chang LIU
  • Publication number: 20220320019
    Abstract: A structure includes a first via and a first conductive line embedded in a first dielectric layer and spaced apart from each other by the first dielectric layer. A first metal pattern disposed on the first via and embedded in a second dielectric layer. A first conductive via disposed on the first conductive line and embedded in the second dielectric layer. The first metal pattern and the first conductive via are spaced apart from each other and are located on a first horizontal level, and the first metal pattern has an open ring shape. A second via disposed on the first metal pattern and embedded in a third dielectric layer. An inductor structure including the first via, the first metal pattern, and the second via.
    Type: Application
    Filed: March 30, 2021
    Publication date: October 6, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Yuan Chang, Jiun-Yi Wu, Chien-Hsun Lee, Chung-Shi Liu, Chen-Hua Yu
  • Publication number: 20220293578
    Abstract: A device includes a substrate having a first surface and a second surface opposite to the first surface; a thin-film transistor array disposed on the first surface, including a plurality of transistors; a plurality of diodes disposed on the thin-film transistor array; a plurality of conductive structures penetrating through the substrate from the first surface to the second surface, wherein the plurality of conductive structures are corresponding to the plurality of diodes and electrically connected to the plurality of diodes; a driver unit disposed on the second surface of the substrate; a patterned conductive layer disposed between the substrate and the driver unit; a protection layer disposed on the patterned conductive layer, wherein the protection layer has an opening that exposes the patterned conductive layer; and a conductive material disposed in the opening.
    Type: Application
    Filed: May 30, 2022
    Publication date: September 15, 2022
    Inventors: Wei-Cheng CHU, Ming-Fu JIANG, Chia-Cheng LIU, Chih-Yuan LEE
  • Patent number: 11437239
    Abstract: A method for forming a semiconductor device structure is provided. The method includes forming a first layer over a substrate. The first layer has a trench. The method includes forming a first spacer and a second spacer respectively over opposite inner walls of the trench. The first spacer and the second spacer are spaced apart from each other. The method includes removing a first portion of the first spacer to form a first gap in the first spacer, wherein a first part and a second part of the first spacer are spaced apart by the first gap, and the first gap communicates with the trench. The method includes forming a filling layer into the trench and the first gap to cover the first spacer and the second spacer. The filling layer, the first spacer, and the second spacer together form a strip structure. The method includes removing the first layer.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: September 6, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chih-Ming Lai, Shih-Ming Chang, Wei-Liang Lin, Chin-Yuan Tseng, Ru-Gun Liu
  • Patent number: 11422330
    Abstract: A driving mechanism for moving an optical element is provided, including a movable portion, a fixed portion, a driving assembly, and a first resilient element. The movable portion is for connecting the optical element. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The first resilient element has a board structure. The movable portion is movably connected to the fixed portion via the first resilient element. The fixed portion includes a connection surface, a restricting surface, and a recessed portion. At least a portion of the first resilient element is disposed on the connection surface. The restricting surface contacts and restricts the movable portion. The recessed portion is located between the connection surface and the restricting surface, wherein the recessed portion is lower than the connection surface and the restricting surface.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: August 23, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Bing-Ru Song, Yi-Ho Chen, Chia-Pin Hsu, Chih-Wei Weng, Shin-Hua Chen, Chien-Lun Huang, Chao-Chun Chang, Shou-Jen Liu, Kun-Shih Lin, Nai-Wen Hsu, Yu-Cheng Lin, Shang-Yu Hsu, Yu-Huai Liao, Yi-Hsin Nieh, Shih-Ting Huang, Kuo-Chun Kao, Fu-Yuan Wu
  • Patent number: 11422357
    Abstract: An optical system is provided and includes a fixed assembly, a movable element and a driving module. The fixed assembly has a main axis. The movable element is movable relative to the fixed assembly, and the movable element is connected to a first optical element. The driving module is configured to drive the movable element to move relative to the fixed assembly.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: August 23, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Che-Wei Chang, Chih-Wen Chiang, Chen-Er Hsu, Fu-Yuan Wu, Shou-Jen Liu, Chih-Wei Weng, Mao-Kuo Hsu, Hsueh-Ju Lu, Che-Hsiang Chiu
  • Patent number: 11380661
    Abstract: A display device is provided. The display device includes a substrate having a first surface and a second surface opposite to the first surface, a plurality of light-emitting units disposed on the first surface of the substrate, and a plurality of conductive structures extending into the substrate from the second surface of the substrate. The plurality of conductive structures are electrically connected to the plurality of light-emitting units.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: July 5, 2022
    Assignee: INNOLUX CORPORATION
    Inventors: Wei-Cheng Chu, Ming-Fu Jiang, Chia-Cheng Liu, Chih-Yuan Lee
  • Publication number: 20200245780
    Abstract: A bed apparatus capable of automatically adjusting a bed surface based on a sleeping position is disclosed. The bed apparatus includes a multi-layer bed body including an upper layer and a lower layer, material of the upper layer being softer than the material of lower layer; a shoulder airbag fixedly embedded in the upper layer and supported by the lower layer; a waist airbag movably disposed on the upper layer; a sleeping position sensing unit generating a sensing signal in response to the sleeping position of a user; a control box receiving the sensing signal, and determining the sleeping position of the user based on the sensing signal, and controlling the shoulder airbag or the waist airbag to inflate or deflate, responsively.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 6, 2020
    Inventors: CHIH-YUAN LIU, TING-YU LIU, CHUNG-HAN LIU
  • Patent number: 10651750
    Abstract: A constant on-time isolated converter comprises a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: May 12, 2020
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.
    Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
  • Patent number: 10360656
    Abstract: An image displaying system and an image displaying method are provided. The image displaying system includes a liquid crystal screen with a display area. Firstly, an original frame corresponding to an image signal is shown on the display area at a first time point. Then, an adjusted image is shown on the display area at a second point according to a setting information. The adjusted image and the original frame have different contents. Then, the adjusted image is not shown but the original frame is shown on the display area at a third time point. The time difference between the third time point and the first time point is not larger than a response time period corresponding to the human persistence of vision. Consequently, the image sticking problem or an image retention phenomenon of the liquid crystal displaying technology is overcome.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 23, 2019
    Assignee: FLYTECH TECHNOLOGY CO., LTD
    Inventors: Yun-Ping Liu, Chih-Yuan Liu
  • Publication number: 20190207528
    Abstract: A constant on-time isolated converter comprises a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Applicant: Alpha and Omega Semiconductor (Cayman) Ltd.
    Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
  • Patent number: 10298144
    Abstract: A power conversion system and a method for voltage change detection, specifically, relates to a detection circuit implemented in the AC-DC power converter, detect the voltage change. The AC input voltage is rectified to convert into a DC input voltage transmitted to a detection unit generating a detection voltage signal at different logical states corresponding to the input voltage changes. A charge current source unit is used for charging the capacitor when the detection voltage signal is in a second state and a discharge current source unit is used for discharging the capacitor when the detection voltage signal is in a first state. A primary comparator compares the voltage changes of the capacitor in the alternating charge and discharge processes with a critical zero potential and outputs a detection signal identifying the changing trend of the input voltage.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: May 21, 2019
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.
    Inventors: Yu-Ming Chen, Chih-Yuan Liu, Pei-Lun Huang
  • Patent number: 10270353
    Abstract: A constant on-time isolated converter comprising a transformer is disclosed. The transformer primary side connects to an electronic switch and secondary-side connects to a load and a processor. The processor connects to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal. The driver receives control signal through the coupling element and accordingly changes the electronic switch ON/OFF state, regulating output voltage and current via the transformer, where the electronic switch ON/OFF duration is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed response to load transient.
    Type: Grant
    Filed: December 7, 2014
    Date of Patent: April 23, 2019
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.
    Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yung-Chuan Hsu, Pei-Lun Huang
  • Publication number: 20190043163
    Abstract: An image displaying system and an image displaying method are provided. The image displaying system includes a liquid crystal screen with a display area. Firstly, an original frame corresponding to an image signal is shown on the display area at a first time point. Then, an adjusted image is shown on the display area at a second point according to a setting information. The adjusted image and the original frame have different contents. Then, the adjusted image is not shown but the original frame is shown on the display area at a third time point. The time difference between the third time point and the first time point is not larger than a response time period corresponding to the human persistence of vision. Consequently, the image sticking problem or an image retention phenomenon of the liquid crystal displaying technology is overcome.
    Type: Application
    Filed: October 24, 2017
    Publication date: February 7, 2019
    Inventors: YUN-PING LIU, CHIH-YUAN LIU
  • Patent number: 9954455
    Abstract: The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.
    Type: Grant
    Filed: December 7, 2014
    Date of Patent: April 24, 2018
    Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.
    Inventors: Tien-Chi Lin, Chih-Yuan Liu, Yueh-Ping Yu, Jung-Pei Cheng, Pei-Lun Huang
  • Patent number: 9810640
    Abstract: A panel inspection apparatus is provided. The panel inspection apparatus has a support platform, a delivery platform and a panel inspection assembly. The delivery platform is disposed on the support platform, and the delivery platform has a push module for delivering the panel. The panel inspection assembly includes a plurality of light source modules and a plurality of image-taking modules corresponding to the light source modules. The light source modules include a front light source, a first horizontal light source, and a back light source. The image-taking modules include a front light image-taking module, a first horizontal light image-taking module, and a back light image-taking module. The push module delivers the panel across the support platform so that a plurality of light beams emitted from the light source modules can scan the panel to finish the panel inspection process.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: November 7, 2017
    Assignee: CHENG MEI INSTRUMENT TECHNOLOGY CO., LTD.
    Inventors: Chao-Yi Yeh, Pin-Chuan Su, Shang-Iun Yang, Chih Yuan Liu